10. Komodo Dragon

Killing technique: Quickly ambushes prey with a toxic bite.

At over 9 feet in length and 150 pounds, this lizard could play in the NBA. Although, first it'd need to learn how to dribble and not kill its teammates. One bite from a dragon may contain 57 different strains of bacteria. Aggressive beasts, they can chase down prey at 11 mph. That doesn't sound fast, but imagine a lizard that big running after you. They've left full-grown men for dead, with chunks of flesh torn from them.